Diamond-shaped roofing shingle of heavy sheet material



Oct. 1, 1957 w. RANNIKKO 2,808,010

DIAMONDSHAPED ROOFING SHINGLE OF HEAVY SHEET MATERIAL Filed May 24, 1955 2 Sheets-Sheet 1 IINVENTOR.

WlLUAM RANNIKKO.

' AT T'v Oct. 1, 1957 w. RANNIKKO 2,808,010

' DIAMOND-SHAPED ROOFING SHINGLE OF HEAVY SHEET MATERIAL Filed May 24, 1955 2 Sheets-Sheet 2 IN V EN TOR.

WILLIAM RAN NIKKO.

7 ATT Y.

United States Pat n DIAMOND-SHAPED ROOFING SHINGLE OF HEAVY SHEET MATERIAL William Rannikko, Worcester, Mass.

Application May 24, 1955, Serial No. 510,692 3 Claims. (Cl. 108--7) This invention relates to a roofing shingle which is approximately diamond-shaped in outline and which may be made of any relatively heavy sheet material. Such shingles are laid in successive and overlapping courses, and with the shingles in .adjacent courses vertically offset.

It is found that a relatively wide overlap is required under certain conditions of roof pitch and supporting surface, and that a narrower overlap is satisfactory under diiferent conditions of pitch or surface.

It is the general object of my invention to provide a roofing shingle which is reversible and which will provide either a relatively wide or a relatively narrow overlap, according to which edge of the shingle is laid uppermost.

My invention further relates to arrangements and combinations which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a plan view of my improved shingle;

Fig. 2 is a view similar to Fig. 1 but with the shingle vertically reversed;

Fig. 3 shows a portion of roof laid with shingles positioned as in Fig. 1;

Fig. 4 shows a portion of roof laid with shingles inverted or as shown in Fig. 2; and

Fig. 5 is a plan view indicating how the shingles may be cut from strip material with a minimum of waste.

Referring to Fig. 1, the body portion of my improved shingles S is substantially diamond-shaped, with oppositely-inclined upper edges and 11, oppositely-inclined lower edges 12 and 13, and short upper and lower horizontal connecting edge portions 14 and 15 which gives each shingle a truncated appearance.

At the left-hand edge (as viewed in Fig. 1), the shingle S is extended to form a tab having a straight outer edge 21, short upper and lower end portions 22 and 23, and an inclined connecting edge portion 24.

The right-hand edge of the shingle is similarly provided with a tab having an upright edge portion 31, short upper and lower end portions 32 and 33, and an inclined connecting edge portion 34.

The upper and lower edge portions 14 and 15 are equal in length, and the edge portions 22 and 32 are also of equal length and are each equal to one-half of the length of an edge portion 14 or 15. The inclined edge portions 24 and 34 are parallel respectively to the edge portions 12 and 13.

It will also be noted that the edge portions 10 and 11 are substantially shorter than the edge portions 12 and 13 and that they are parallel thereto. The angles a between these edge portions are somewhat less than 90. The shingles S may be economically pressed or stamped from a strip of sheet material M by setting the die (Fig. 5) at a slight angle.

When the shingles S are laid in overlapping relation in the vertical position shown in Fig. 1, the resulting roof coverage will be as indicated in Fig. 3, with the lower ice 2 edge 15 of a covering shingle coinciding with the abutting lower edges 23 and 33 of the covered shingles.

Successive courses of shingles will have an overlap as indicated at b in Fig. 3, which overlap is sufficient for roofs of relatively steep pitch and with a relatively smooth and firm supporting surface.

If a roof of less pitch or of rougher supporting surface makes a wider overlap desirable, the shingles will be laid in inverted position, as shown in Figs. 2 and 4. a v

A starting course is laid with the tabs 20 and 30 in abutting relation, as previously described, and with the short edge portions 22 and 32 in alignment at the bottom of the tabs 20 and 30.

The next course is then laid with the edges 14 coin ciding with the edges 22 and 32. When thus laid, an overlap c will result which is substantially wider than the overlap b in Fig. 3.

Thus a single shingle unit of relatively simple outline may be used to provide closely similar coverage but with either relatively narrow or relatively wide ovelap as conditions indicate.

In both relations, nails inserted in the abutting tabs 20 and 30 are covered by the lower edge portion 14 or 15 of the shingles in the next higher course.

The following claims are drawn to read on my improved shingle when viewed in the normal position shown in Fig. 1.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

l. A roof comprising a plurality of reversible shingles all similarly disposed in adjacent courses and in alternately offset relation, each shingle being usable in normal or reversed position and each shingle being of a substantially diamond shape and having oppositely and equally inclined upper side portions, oppositely and equally inclined lower side portions of substantially greater length but of the same angles of inclination as the upper side portions, relatively short horizontal connecting edge portions of equal length between the two upper side portions and between the two lower side portions, a laterally projecting and vertically elongated tab at each side edge of each shingle and with portions extending both above and below the mid-height of the shingle, said tabs having upper and lower horizontal end edge portions of equal length and each equal to one-half of the length of the relatively short horizontal connecting upper and lower edge portions of said shingle, and the upper end edge portion of each tab being substantially nearer to the upper edge portion of said shingle than the lower end edge portion of said tab is from the lower edge portion of said shingle, said shingles in both normal and reversed positions presenting the same general truncated appearance but said shingles in reversed position having substantially increased lap of adjacent courses when the connecting horizontal lower edge portion of one shingle coincides with the horizontal edge portions at the lower ends of the tabs of the shingles in the next lower course, and said shingles all having continuous and exposed truncated lower ends of equal horizontal width in both normal and reversed positions.

2. In a roof, a reversible roofing shingle of substantially diamond shape and having oppositely and equally inclined upper side portions, oppositely and equally inclined lower side portions of substantially greater length, relatively short horizontal connecting edge portions of equal length between the two upper side portions and between the two lower side portions, a laterally projecting tab at each side edge of each shingle and with portions extending both above and below the mid-height of the shingle, said tabs having upper and lower horizontal end edge portions of equal length and each equal to onehalf of the lengthof each short connecting horizontal edge portion at the top and bottom edge of said shingle, and each projecting tab at its upper end being substant al y R Q QDSQQ downward and inward and be g 99. d the adja ent and rela i e y l p s uppe side Pa don .05 said shi g e y a short nc ined d e por i whi h is substa t ally p ra lel o he pp r s d Porti n of t e shin l which is on t e .oppsisitr: side of the e ter line of 'said'shingle as said short inclined edge portion.

3- n a 991, a reversib e roofing hinalec sub t a ly d amqad shape and bel ies opposite y a qu y nclined pp ide ii' rtimlsa ppo it ly nd eq a ly in in o r s de po ti ns o ubst atia s' g eate length e ti e y h rt h rizonta c nnec in e e pqrtiqnsbewve n 15 1,489,921

the two up e side qrt ons andbetv sa the tw o e side portions, laterally projecting tabs at each side edge of each shingle and with portions extending with above and below the mid-height of the shingle, said tabs having upper and lower horizontal end edge portions of equal length and each equal to one-half of the length of each short horizontal connecting upper and lower edge portion of said shingle, and said upper and lower end edge portions of said tabs being at different distances from the upper and lower connecting horizontal edge portions, and said shingles having substantially ditferent overlaps when 10 vertically reversed in the roof.

References Cited in the file of this patent UNlTED STATES PATENTS Brown Apr. 8, 1924 1,636,349 Adams July 19, 1927 

